Universal joint



W. H. THIEMER.

UNIVERSAL JOINT.

APPucATloN man Juni 2n. 1,919.

Patented Mar. 28, 1922.

vand useful Improvement g n :UNITED STATES PATENT oFI-lcEf -.WILLIAMI-I. THIEMER, OF CLEVELAND, OHIO, ASSIGNOR T0 THE PETERS MACHINE & aMANUIACT'URING- COMPANY, OF CLEVELAND, OHIO, A CORPORATION OF OHIO.

UNIVERSAL JOINT.

Specification of Letters Patent. Patented M31'. 28,- 1922*-Application'led June 20, 1919. Serial N 0,305,644.

To all 'whomvlt 711.ag/-c0ncem:

'Beit'known that I, VVILLAM H. THIEMER, va citizen of the United States,residingfat Cleveland, in the county of Cuyahoga and AState of Ohio,have invented a certain new in ,Universal Joints, of whichwthe'following is ya full,

' v clear, and exact description, reference being had to theaccompanying drawings@` y Thisinvention relates to universalufoints, andmore particularly to the means or as- 'sembling` and 'lubricating thesame.' if The inventionmaybe vdefined generally 'as coni ,'sisting.oftheg details and con'ibin'ationsl yof' elements whereby these resultsarejeffected. "1n the, drawingsforming part hereof,

` Figlrepresents asectional elevation lof a joint constructed inaccordance with myfin, Y vention,-`. together with the' ends ofthe'shaft sections united thereby{Fig}V 2 Y ajdetailfin elevation' ofthe"co`nnecting member; land Fig. asectional detail.corresponding to theline 3-3 of,Fig."`2.il

characters, 1 and 2 denote'y the shaft sections whichare to be united-bylthe universal joint, each 'section having ksecured to one endthereof a hub, Vindicated at 3 and 4. Each hub is provided with asupporting base or flange 5. Y

Each of the supporting bases is provided with bearing blocks 6 and 7respectively, each bearing block having a bore therethrough, indicatedat 8 and 9, respectively.

The connecting member is of the cross type and comprises a pair oftrunnion pins, one of which extends through and at right angles to theother, with a ring providing about the intersecting portions of suchpins a lubricant receptacle from which the lubricant may be distributedby centrifugal action to the bearings.

One of the pins 10 is a continuous pin the ends 11 whereof constitutetrunnions,the trunnions lbeing mounted Within bushings 12 mounted linthe bores of the bearing blocks. v is provided with an aperture 13,preferably cylindrical, for the reception of the overlapping ends of theother pin. The other pin comprises two members 14 and 14, the member 14having an annular shell extension 15 adapted to fit within the bore 13and to receive ltherewithin a cylindrical stud 16 provided at the innerend of the member At its central portion, thepin 10 i 1451. rlhe ends ofthe pin membersl 14 and 14"" constitute the other pair of trunnions 17.

Cooperating with the cross pins is a ring 18 having four cylindricalopenings for and fittingr closely about said pins and having vacentral'well 19 for lubricant shown asv closed vby plates 2() fittingWithin annular seats 21 and connected at their central por- Y tions by abolt 22 which also'serves to connect/the cross pins, extending throughthe central portions thereof,'as-.will appear by "reference'toFigs.1.rand3.

" The trunnions afa@ two' pins' are' identic'alin construction "and aremounted inthe saine 7manner v"ivi'thin theirrespective journals. Whenassembled, vthe outer end of eachk trunnion terminates shortfof theouter endfof its bushing-12, thel outer end of the ing anannular recess11,2ffor thereception k"Describing the variousvpartsby referencevlthisconstruction, the ltrunnions' and bushings'lare located' entirelywithin the" outer suifacesof.v their respective bearing blocks 'andthere' isV provided` beyond the outer end jof each trunniona well 24Cfor lubricant.

For the purposeA of distributing lubricant from the central well to thejournals, the pinsk are'provided each with a port 25 extendingl from theinner central portion thereof outwardly to the well 24 and each trunnionis provided in addition with a port 26 extendinginwardly from'the outercnd thereof and adapted to conduct lubricant from its well 24C to theinterior of its bushing 12. Lubricant may be conveniently supplied tothe well 19 by means of a vfilling aperture extending through the outerwall of the ring and provided with a removable kplug 27. y

The joint may be assembled by inserting the ring between the bearingblocks, with `its openingsin register with the bores of said blocks,slipping the pin 10 in place, inserting the members 14 and 14 oftheother pin, connecting the intersecting portions of the pins and thecover plates by kthe bolt 22, inserting the bushings 12, and

bushing;being-:preferablyflush .withmthe so I .the .v bushings.

connecting` member having openings adapted to register with saidbearings, a pair of .pins nfiounied'in the openings of s'aid meniber andhaving trunnion's for said bearings', Aa bushing in each bearingsurroundinw the trunnioirtherein and extending beyond the outer end ofits trunnion, the said bushings li'avii'ig each fan' annular seat beyondits trunnion, a plate sprung into said seat and forming a Well beyondthe end vof said trunnion, a lubricant well in said member and means forConducting lubricant from said Well to the wells provided Withinthebushings.

`2. The combination7 witha :pair of shaft sections each having a pair ofbearings,` of a connecting member having openingsl adapted toregistenwith said bearings, a pair of pins mounted in the openings ofsaid member`- and having trunnionsr for said bearings, a bushing in eachbearing surrounding the tru-nnion therein *and extending beyond theouter'end of its trimmen, a plate forming with the bushing a well beyond`the end of saidtri'ifnnion'9 a lubricant Well in saidimemer,andi/'means for conducting lubricant fromr said Well to the vvellsprovided Within e' l in `a universi' 561m, fthe' @mi110111ation,

with a pair .of shaftlsections each havin ar pair offbearingsgjofalconnectingmem er havingvopenings adapted to .register vWithsaidxbearingg a v continuous*Spin slidably' mounted in onepair vofopenings of said member and v(having, a` central lbore .theren through',a vpin'membermounted in one of the other:ojoeningsi` offtheyConnecting{mem-y vbei' and having a shell mounted in said bore,

signature.

pair ofi-bearings, a connecting member,hav-V 4 ing a centra-1 Well forlubricant and inter-V secting pins having trunnions for said bearings, abushing in each bearing surrounding Y andvprojecting beyond the`outerend of the trunnion therein and provided with a jwell beyond. suchtrunnion7` and means for :c0114 ducting lubricant from'the centralWellhof Y theconnecting memberto each of theivells withina'bushingandltjhence to the bearing f formed 'l between ,leachI trunnionyand its bushmg.-` Y 5. ln a u iversal ]o1'nt, the combination of.

ilifdllf Oibfgsheft Sections e011; having Pair eifbeilflesf e; @foss,member P 'riivded with *Qypenlliesedented @limieten-1th. Seidy beer;-`mes, ,pms mteretirlg fattheir, Central. por: Y

tiene@ thifeerite A, Seid-member meuhted; in, the. .Oren ngsrgtihereefeed .nre vided with ,trunnions forsaid bearings, cover ,'platesifor theCentral porton oi said member 'well said' wen te' sind bearings Y

